Issue #1078736 by jcfiala:Added empty handler for hook_link_form_settings to...

Issue #1078736 by jcfiala:Added empty handler for hook_link_form_settings to make Field Permissions work.

link.module

@@ -866,4 +866,11 @@ function link_content_migrate_instance_alter(&$instance_value, $field_value) {
       && $instance_value['widget']['type'] == 'link') {
     $instance_value['widget']['type'] = 'link_field';
   }
+}
+
+/**
+ * Implements hook_field_settings_form().
+ */
+function link_field_settings_form() {
+  return array();
 }
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